If the budget is 3k and you have pre-existing good amplification and subs, the Magnepan LRS+ would be a bit of a nobrainer for a 1000 bucks (as others have suggested). Traits of magnepans are well known.
Hmmm, another good option could be the Emotiva XT3 floorstander for 2000 dollars (Made in Tennessee!!). This seems to be a fairly unique speaker (for this price) with a very high level of resolution, clarity, imaging capabilities and significant bass output/extension that could remind you of some expensive speakers. You may not even need your Rel subs (which are not some infrasonic miracle, to begin with) in a smaller room.
What’s the fascination with a bookshelf anyways? After you put it on some stand, it takes the same footprint as a floorstander and you have to deal with a goofy rickety thing known as the speaker stand! (not to mention that some woofer in these goofy 2-way bookshelfs has to play up into the midrange, drops resolution/clarity, wimpy soundpower, increased distortion, etc). Bookshelf speakers are not the greatest idea unless you spend big bucks on a bookshelf to overcome some inherent disadvantages.